Thrincostoma [!] (Thrincostoma [!]) petersi Blüthgen, 1930: 499, 515–516, 535, MMM. Male holotype : Uganda : Kampala, 20.VI.1926, leg. Hancok (BMNH).
Thrinchostoma petersi Blüthgen: Cockerell 1936: 9.
Thrinchostoma (Thrinchostoma) petersi Blüthgen: Michener 1978: 524; Pauly 1999: 155, 175.

Thrinchostoma rubrocinctum Benoist, 1957: 879–880, MMM. Male holotype : Senegal, Bignona, V.1946 (MNHNP).
Thrinchostoma (Thrinchostoma) rubrocinctum Benoist: Pauly 1999: 155, 176.

Diagnosis. Male. Last segment of the antennae bent at right angles. Apical margin of S5 glabrous. Apical lobe of hind tibiae longer than in T. kandti. First two tergites usually red, rarely black. Males with black metasoma can only be separated from T. kandti by the longer apical lobe of hind tibia and the S5 more largely curved.
Female :

Remarque :

The female is often confused with that of T. torridum but it can be easily distinguished by the subgeneric character of hind calcar decorated with a strong laminated tooth in the center.

Holotype T. petersi: The antennae are broken in the holotype and Blüthgen report in his original description that the antennae are broken. Blüthgen suppose that this species is close to T. productum (= T. bequaerti). But our examination of the type shows that this species actually corresponds to that Benoist later described as T. rubrocinctum! Indeed, in the holotype of T. petersi first two tergites are red and sternite 5 is hairless and shaped as in T. rubrocinctum.